TWI375227B - Device and method for prioritized erasure of flash memory - Google Patents

Device and method for prioritized erasure of flash memory Download PDF

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Publication number
TWI375227B
TWI375227B TW096132772A TW96132772A TWI375227B TW I375227 B TWI375227 B TW I375227B TW 096132772 A TW096132772 A TW 096132772A TW 96132772 A TW96132772 A TW 96132772A TW I375227 B TWI375227 B TW I375227B
Authority
TW
Taiwan
Prior art keywords
data
priority
elimination
block
cancellation
Prior art date
Application number
TW096132772A
Other languages
English (en)
Chinese (zh)
Other versions
TW200822124A (en
Inventor
Eran Erez
Original Assignee
Sandisk Il Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/797,377 external-priority patent/US8117414B2/en
Priority claimed from US11/797,378 external-priority patent/US7975119B2/en
Application filed by Sandisk Il Ltd filed Critical Sandisk Il Ltd
Publication of TW200822124A publication Critical patent/TW200822124A/zh
Application granted granted Critical
Publication of TWI375227B publication Critical patent/TWI375227B/zh

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/062—Securing storage systems
    • G06F3/0623—Securing storage systems in relation to content
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
    • G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
    • G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
    • G06F3/0652—Erasing, e.g. deleting, data cleaning, moving of data to a wastebasket
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device
    • G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7205—Cleaning, compaction, garbage collection, erase control
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2143—Clearing memory, e.g. to prevent the data from being stolen

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Read Only Memory (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Storage Device Security (AREA)
TW096132772A 2006-09-04 2007-09-03 Device and method for prioritized erasure of flash memory TWI375227B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US82445206P 2006-09-04 2006-09-04
US11/797,377 US8117414B2 (en) 2006-09-04 2007-05-03 Method for prioritized erasure of flash memory
US11/797,378 US7975119B2 (en) 2006-09-04 2007-05-03 Device for prioritized erasure of flash memory

Publications (2)

Publication Number Publication Date
TW200822124A TW200822124A (en) 2008-05-16
TWI375227B true TWI375227B (en) 2012-10-21

Family

ID=38917809

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096132772A TWI375227B (en) 2006-09-04 2007-09-03 Device and method for prioritized erasure of flash memory

Country Status (5)

Country Link
JP (2) JP5065395B2 (ja)
KR (1) KR101429898B1 (ja)
CN (1) CN101529370B (ja)
TW (1) TWI375227B (ja)
WO (1) WO2008029389A1 (ja)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5338306B2 (ja) * 2008-12-26 2013-11-13 富士通株式会社 データ記憶装置およびデータ記憶装置におけるデータ管理方法
US8572344B2 (en) 2009-05-04 2013-10-29 Hewlett-Packard Development Company, L.P. Storage device erase command having a control field controllable by a requestor device
WO2012079216A1 (en) * 2010-12-13 2012-06-21 Mediatek Singapore Pte. Ltd. Nor flash memory controller
TWI423023B (zh) 2011-04-22 2014-01-11 Silicon Motion Inc 快閃記憶體之區塊選取方法及資料儲存裝置
JP6107286B2 (ja) * 2013-03-25 2017-04-05 日本電気株式会社 分散ストレージシステム、ノード、データ管理方法、及びプログラム
JP6253009B2 (ja) * 2013-08-28 2017-12-27 東海光学株式会社 光学製品及び眼鏡レンズ
KR20150116352A (ko) 2014-04-07 2015-10-15 삼성전자주식회사 메모리 제어 방법 및 시스템
US20160188890A1 (en) * 2014-12-26 2016-06-30 Intel Corporation Security mode data protection
US20170344295A1 (en) * 2016-05-31 2017-11-30 Sandisk Technologies Llc System and method for fast secure destruction or erase of data in a non-volatile memory
US9633738B1 (en) * 2016-06-28 2017-04-25 Sandisk Technologies Llc Accelerated physical secure erase
CN106339324B (zh) * 2016-08-19 2019-05-10 浪潮(北京)电子信息产业有限公司 一种选择垃圾回收块的方法及装置
CN107463341A (zh) * 2017-08-25 2017-12-12 上海闻泰电子科技有限公司 Flash芯片的擦除方法、装置和移动终端
CN109817271A (zh) * 2018-11-21 2019-05-28 中国航空工业集团公司洛阳电光设备研究所 一种固态硬盘坏块的检测方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3359942B2 (ja) * 1992-10-29 2002-12-24 株式会社東芝 メモリカード装置
CN2168322Y (zh) * 1993-02-22 1994-06-08 傅忠民 可擦可编程序存储器仿真装置
GB2317722B (en) * 1996-09-30 2001-07-18 Nokia Mobile Phones Ltd Memory device
US7003621B2 (en) * 2003-03-25 2006-02-21 M-System Flash Disk Pioneers Ltd. Methods of sanitizing a flash-based data storage device
JP3978410B2 (ja) * 2003-06-03 2007-09-19 株式会社リコー 画像制御装置、画像形成装置、画像制御方法、画像制御プログラム及び記録媒体
JP2006155159A (ja) * 2004-11-29 2006-06-15 Fuji Electric Holdings Co Ltd 耐タンパ装置

Also Published As

Publication number Publication date
JP2012216234A (ja) 2012-11-08
JP2010503103A (ja) 2010-01-28
KR20090047513A (ko) 2009-05-12
CN101529370B (zh) 2012-02-22
JP5486047B2 (ja) 2014-05-07
CN101529370A (zh) 2009-09-09
TW200822124A (en) 2008-05-16
WO2008029389A1 (en) 2008-03-13
JP5065395B2 (ja) 2012-10-31
KR101429898B1 (ko) 2014-08-13

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